98-0440-4275-6 3M, 98-0440-4275-6 Datasheet

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98-0440-4275-6

Manufacturer Part Number
98-0440-4275-6
Description
DBEF-D400 0 DEGREE 14" X 14"
Manufacturer
3M
Series
Vikuiti™r
Type
Film, Dual Brightness Enhancement-Diffuse 400 (DBEF-D400)r
Datasheet

Specifications of 98-0440-4275-6

Size
14" x 14" (356mm x 356mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
3M5653-KIT
51128773307
98044042756
Vikuiti
Vikuiti
Vikuiti
D e s c r i p t i o n
The prismatic structure of Vikuiti
exiting from your display. Vikuiti BEF films work by utilizing the principles of refraction and total internal reflection.
The process of refracting usable light towards the viewer and reflecting most of the remaining light back into the
display is called recycling. This form of light management can be done with a single sheet of Vikuiti BEF film or
two sheets crossed at 90 degrees to each other. Vikuiti BEF films can also be used with Vikuiti
Enhancement Films (DBEF) and Vikuiti
your display.
for some time. It features an acrylic resin prismatic structure coated on a polyester substrate. This is the highest
performance member of the family, and incorporates structural features which helps avoid wet-out, which is an
optical coupling that can mar the appearance of an LCD display. It is available in the standard 90/50 version, and
a 90/24 version for additional moiré avoidance.
utilizing a randomized prism pattern for increased wet-out and reflective moiré avoidance. It has slightly lower
performance than Vikuiti BEF II film. It is also available in an M (Matte) version. The M version softens the
brightness fall-off at the edges and may allow the elimination of a separate diffuser from the display. Essentially,
Vikuiti BEF III film is a slightly lower cost, slightly lower performance alternative to Vikuiti BEF II film.
half as thick as Vikuiti BEF III film. It is intended for those applications where the thickness of the entire
display/module must be kept to an absolute minimum. Its thin nature makes it somewhat less robust, and should
be restricted to relatively smaller displays where its reduced warp resistance and environmental stability will not
be a factor.
Brightness Enhancement Film II (BEF II)
Brightness Enhancement Film III (BEF III)
Thin Brightness Enhancement Film (TBEF)
The “T” stands for Thin. Vikuiti TBEF film has excellent optical performance, yet is less than
This is the current version of the original Vikuiti BEF I film, which has been out of production
This is a newer version, featuring similar structural elements to Vikuiti BEF II film, but
Brightness Enhancement Film (BEF) allows you to manage the angle of light
Enhanced Specular Reflector (ESR) to further increase the efficiency of
Application Guidelines
Effective: January 14, 2010
Dual Brightness
3

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98-0440-4275-6 Summary of contents

Page 1

Vikuiti ™ Brightness Enhancement Film II (BEF II) Vikuiti ™ Brightness Enhancement Film III (BEF III) Vikuiti ™ Thin Brightness Enhancement Film (TBEF The prismatic structure of Vikuiti ™ ...

Page 2

The figures below illustrate the film’s basic constructions. All dimensions are approximate, and the figures are not drawn to scale ™ ...

Page 3

To help you orient the film, the sheets will have a small notch cut into one of the corners. Hold the sheets with the cut notch in the upper right-hand corner to identify the prism direction for square parts and ...

Page 4

... Mobile Interactive Solutions Division 3M Center, 235-1E-54 St. Paul, MN 55144-1000 Minimum 10% Post-Consumer Fiber ® Tape #415. Designs Vikuiti and the Vikuiti “Eye” symbol are trademarks of 3M. Scotch is a registered trademark of 3M. Printed in U.S.A. © 3M 2010 75-0500-5203-6 11988SA012210NM ...

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